Federal housing law
Internal Revenue Manual Part 2. Information Technology
Federal housing law as enacted — verbatim and citable.
- Edition
- 2026-10-03
- Last updated
- 2026-10-04
- Jurisdiction
- United States
Official source: Internal Revenue Manual (https://www.irs.gov/irm/part2/irm_02-003-071), retrieved 2026-10-03. U.S. Government work (17 U.S.C. § 105).
Part 2. Information Technology¶
Chapter 3. IDRS Terminal Responses¶
Section 71. Command Code ATINQ¶
2.3.71 Command Code ATINQ¶
Manual Transmittal¶
Purpose¶
(1) This transmits revised IRM 2.3.71, IDRS Terminal Responses, Command Code ATINQ.
Material Changes¶
(1) IRM 2.3.71.6 updated the word GENDER to SEX.
Effect on Other Documents¶
Audience¶
Effective Date¶
Kaschit Pandya Chief Information Officer
Program Scope and Objectives¶
This IRM section provides the instructions for the use of ATIN Inquiry command code ATINQ.
Purpose: These sections provide instructions for inputting information to research the ATIN database
Audience: All IRS Business Units.
Policy Owners: The Director, Taxpayer Services owns the polices contained herein.
Program Owners: Taxpayer Services (TS) is responsible for the administration, procedures, and updates related to the program.
Primary Stakeholders: Taxpayer Services (TS), Large and Mid-Size Business Division (LMSB), Small Business Self-Employed (SB&SE), Tax exempt and Government Entities (TE&GE)
Program Goals: These are the instructions for using the ATIN Inquiry IDRS command code.
Background¶
This IRM and the contained subsections provide the user the necessary information on how to use Command Code ATINQ.
Roles and Responsibilities¶
The ATIN (Adoption Taxpayer Identification Number) Project Lead is responsible for reviewing and implementing the Work Requests that affect Command Code ATINQ and for updating the contents of this IRM.
Program Management and Review¶
Command Code ATINQ is managed by Work Requests which are submitted for changes and also by tickets which are submitted by users for corrections.
Program Controls¶
Access to this program is governed by SACS.
Terms and Acronyms¶
Acronyms used in ATIN and IDRS
Acronym
Definition
ATIN
Adoption Taxpayer Identification Number
CC
Command Code
DLN
Document Locator Number
IDRS
Integrated Data Retrieval System
SACS
Security and Communications System
SSN
Social Security Number
ATINQ Overview¶
The Adoption Taxpayer Identification Number (ATIN) System has been developed to assign a unique temporary tax identification number for children who are in the process of being adopted and cannot yet apply for a SSN until the adoption is final.
Taxpayers will submit a Form W–7A (Application for Taxpayer Identification Number for Pending Adoption) in order to acquire a number for the adoptive child.
The ATIN System will consist of two command codes and various batch programs. All update processing will take place at the Austin Campus. Command code ATINQ for research of the ATIN file is described in this IRM. ATINQ is automatically routed so all service centers can research the Austin Campus file.
See IRM 2.4.50, Command Code ASIGN, for updating the ATIN file.
ATIN TIP CC ATINQ¶
This command code is used to research the ATIN. Universal access can be used to access the ATIN database at the Austin Campus if necessary. The input for ATINQ can be the primary SSN, secondary SSN, or ATIN.
Terminal Responses—CC ATINQ¶
Informational Messages — line 24
NO DATA AVAILABLE — This indicates that there is no taxpayer on the file that matches the number input on the screen.
PLEASE CORRECT INVALID DATA — The TIN entered is not valid or is not numeric. Correct and re-enter.
TIN MUST BE IMF SSN FORMAT — The TIN that was entered as a search key must be in the following format: nnn-nn-nnnn.
SSN INVALID — The primary SSN could not be matched against the National Accounts Profile (NAP) database or was not numeric.
NAP DOWN DURING LOAD — AUSPC WILL REVALIDATE SSN — The National Accounts Profile (NAP) was not available during the loading of the record. Philadelphia Service Center will revalidate the primary SSN against the NAP when working the case.
REQUEST MUST BE MADE VIA UNIVERSAL ACCESS TO AUSPC — Austin Service Center is the only location for the ATIN data.
BAD DATA IN SSN RECORD — Self-explanatory.
ATIN AREAS DOWN — Database areas are down.
REALTIME SYSTEM ERROR — Self-explanatory.
ACCESS TO AREA IS RESTRICTED — Database area access has been restricted.
CC ATINQ Input Format¶
Request Screen Format:
Figure 2.3.71-1
Please click here for the text description of the image.
Record Element Specification
Line
Ele
Record Element Name
Position
Description
1
1
COMMAND-CODE
1–5
ATINQ
2
PRIMARY-SSN, SECONDARY-SSN, or ATIN
7–17
NUM (EDITED)
CC ATINQ—Match Display Format¶
Note:¶
Any field followed by an asterisk (*) has been found to be invalid by the ATIN batch programs. These fields should be corrected by the primary ATIN center using CC ASIGN.
Figure 2.3.71-2
Please click here for the text description of the image.
Record Element Specification:
Item
Line
Description and Validity
1
1
PRIMARY SSN, SECONDARY SSN, or ATIN
2
1
DLN
3
1
STATUS CODE —
A=AssignedS=SuspendedR=RejectedE=ExpiredU=UnworkedH=Possible duplicate
4
1
EXTENSION STATUS CODE —
A=Extension was grantedS=Extension suspendedR=Extension was rejectedE=Extension has expired
5
1
EXTENSION DATE — Date the extension was granted
6
2
ATIN NUMBER
7
2
ATIN ASSIGNED DATE
8
2
STATUS DATE
9
2
EMPLOYEE NUMBER
10
3
DATE SIGNED — Date the application was signed by the applicant
11
3
RECEIVED DATE — Date the application was received in the service center
12
3
LOAD DATE — Date the application was loaded to the ATIN database
13
3
STATUS REASON CODE —
For STATUS CODE S, (Up to 5 may be entered.)
01=Adoptive child's name is missing02=Adoptive child's date of birth is missing03=Adoptive child's place of birth is missing04=Adoptive child's sex is missing05=Name of placement agency/agent is missing06=Placement agency/agent's address is missing07=Date of placement is missing08=Signature is missing09=Supporting documentation is missing10=Primary and/or Secondary applicant information is different from SSA information11=Supporting documentation does not match Form W–7A entries12=Child placed under a foster care agreement99=IDRS letter has been sent
For STATUS CODE R, (Only 1 may be entered.)
01=ATIN has been previously assigned for same child02=A duplicate application exists03=Taxpayer has not responded to correspondence (generated)04=Foreign adoption07=Failed to Qualify - Adoption Placement Not Completed08=Failed to Qualify - No Adoption Placement09=ATIN No Longer Valid10=Foster Adoption Not Eligible for ATIN
For EXTENSION STATUS CODE S
13=Extension suspended
For EXTENSION STATUS CODE R,
06=Extension has been denied
14
4
PRIMARY SSN — Primary applicant's social security number.
15
4
APPLICANT SIGNATURE INDICATOR—
1=Application was signed0=Application was not signed.
16
4
APPLICANT PHONE NUMBER
17
4
DOCUMENTATION INDICATOR —
0=Documentation was not submitted1=Documentation was submitted2=Documentation was submitted but it does not match the Form W–7A9=Value inserted during conversion of all applications which were on the file prior to 1999
18
5
PRIMARY TAXPAYER'S FIRST NAME
19
5
PRIMARY TAXPAYER'S LAST NAME
20
6
SECONDARY SSN — Secondary applicant's social security number (optional)
21
7
SECONDARY TAXPAYER'S FIRST NAME — (optional)
22
7
SECONDARY TAXPAYER'S LAST NAME — (optional)
23
8
STREET OF APPLICANT'S ADDRESS
24
8
NOTICE DATE — Date the notice was issued
25
8
NOTICE TYPE CODE — CP number of the notice
560A=ATIN assignment560B=Extension of the ATIN has been granted561 =ATIN/Extension due to expire or has expired562A=Request for additional information562B=Second request for additional information563=Request for ATIN has been rejected
26
9
CITY OF APPLICANT'S ADDRESS
27
9
UNDELIVERABLE NOTICE CODE DATE
28
9
UNDELIVERABLE NOTICE CODE —
0=Notice 560 was undeliverable1=Notice 561 was undeliverable2=Notice 562 was undeliverable3=Notice 563 was undeliverable9=IDRS letterwas undeliverable
29
10
STATE OF APPLICANT'S ADDRESS
30
10
ZIP CODE OF APPLICANT'S ADDRESS
31
10
UNDELIVERABLE EMPLOYEE NUMBER — Number of employee who worked the undeliverable notice
32
11
CHILD'S SSN — If all 9's, indicates notice was received that child has an SSN but it was not provided
33
11
CHILD'S DATE OF BIRTH
34
11
CHILD'S SEX
35
13
CHILD'S ADOPTED FIRST NAME
36
13
CHILD'S BIRTH FIRST NAME — (optional)
37
14
CHILD'S ADOPTED MIDDLE NAME
38
14
CHILD'S BIRTH MIDDLE NAME — (optional)
39
15
CHILD'S ADOPTED LAST NAME
40
15
CHILD'S BIRTH LAST NAME — (optional)
41
16
CITY OF CHILD'S PLACE OF BIRTH
42
16
STATE OF CHILD'S PLACE OF BIRTH
43
17
PLACEMENT AGENCY NAME
44
17
PLACEMENT DATE
45
18
PLACEMENT AGENCY STREET
46
19
PLACEMENT AGENCY CITY
47
19
PLACEMENT AGENCY STATE
48
19
PLACEMENT AGENCY ZIP CODE
49
20
POWER OF ATTORNEY NAME
50
21
POWER OF ATTORNEY STREET
51
22
POWER OF ATTORNEY CITY
52
22
POWER OF ATTORNEY STATE
53
22
POWER OF ATTORNEY ZIP CODE
54
23
REMARKS
55
24
INFORMATIONAL MESSAGE — Message explaining results of request.
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